Conductivity/Resistivity Analyzer/Controller
6.2 General Wiring Practices for I/O Wiring
WARNING
Wiring should be performed by qualified personnel only.
Safety precaution
WARNING
A disconnect switch must be installed to break all current carrying conductors. Turn off power before working on conductors. Failure to observe this precaution may result in serious personal injury.
WARNING
An external disconnect switch is required for any hazardous voltage connections to the relay outputs.
Avoid damage to components
ATTENTION
This equipment contains devices that can be damaged by electrostatic discharge (ESD).
The damage incurred may not cause the device to fail completely, but may cause early failure. Therefore, it is imperative that assemblies containing static sensitive devices be carried in conductive plastic bags. When adjusting or performing any work on such assemblies, grounded work stations and wrist straps must be used. If soldering irons are used, they must also be grounded.
A grounded work station is any conductive or metallic surface connected to an earth ground, such as a water pipe, with a 1/2 to 1 megohm resistor in series with the ground connection. The purpose of the resistor is to current limit an electrostatic discharge and to prevent any shock hazard to the operator. The steps indicated above must be followed to prevent damage and/or degradation, which may be induced by ESD, to static sensitive devices.
Immunity Compliance
In applications where either the power, input or output wiring are subject to electromagnetic disturbances, shielding techniques will be required. Grounded metal conduit with conductive conduit fittings is recommended.
Conform to code
Instrument wiring should conform to national and local electrical codes.
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual | 7/99 |
